Controls: Left and right arrows - movement Up arrow - jump Space - shoot Click "Start Wave" for enemies to come. Enemies will get stronger after each wave. Click "Go to Shop" to buy upgrades: Increase fire rate - makes you shoot 20% faster Increase damage - you deal 0.5 more damage (you start with 1) Increase armor - you take 25% less damage Heal doge - restores 20 health (health does not go over 100)